The "Expert" menu Micropilot FMR50/FMR51/FMR52/FMR53/FMR54/FMR56/FMR57 FOUNDATION Fieldbus
98 Endress+Hauser
Recording the mapping curve
There are different methods of recording the mapping curve:
• Factory map
• Overlay map
• Record new map
Factory map
The factory map is adapted to the individual antenna and is therefore permanently stored
in the device and not recorded by the user. It covers the near field of the antenna (ringing
area).
A0020643
1 Envelope curve
2 Factory map
3 Level distance
4 Empty distance
If a new mapping is recorded, the factory map nevertheless remains in the device and can
be reactivated when required by selecting the Factory map option in the Confirm
distance parameter.
Overlaying the map
In this case the existing mapping curve (i.e. the factory map or a previously recorded map)
initially remains valid.
During the defined Mapping overlay time the envelope curve is observed. At each
position the heighest value reached during the mapping overlay time is used for the new
mapping curve. Depending on the circumstances this may be the amplitude of the old
mapping curve or an amplitude obtained during the mapping overlay time.
With the help of the overlay mapping it is possible to map not only static but also dynamic
signals (e.g. from an agitator).
Mapping overlaying will be used if one of the options Distance ok or Tank empty has
been selected in the Confirm distance parameter.
New recording of the mapping curve
In this case the existing map is deleted and a new map is recorded.
In contrast to the overlaying, only the current envelope curve is used here and there is no
mapping overlay time. Therefore the new recording is faster than the overlaying. However,
dynamic interference echos can not be suppressed in this way.
A new recording of the map is started in the following way:
1. Go to the Confirm distance parameter and select Manual map.
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